diff --git a/inc/hgl/log/LogInfo.h b/inc/hgl/log/LogInfo.h
index 154dfaf..cee0a69 100644
--- a/inc/hgl/log/LogInfo.h
+++ b/inc/hgl/log/LogInfo.h
@@ -16,13 +16,13 @@ namespace hgl
 {
     namespace logger
     {
-        enum LogLevel
+        enum class LogLevel
         {
-            llError=0,      //错误，肯定出对话框
-            llProblem,      //问题，默认出对话框
-            llHint,         //提示，不重要，debug状态默认出对话框
-            llLog           //记录一下
-        };//enum LogLevel
+            Error=0,      //错误，肯定出对话框
+            Problem,      //问题，默认出对话框
+            Hint,         //提示，不重要，debug状态默认出对话框
+            Log           //记录一下
+        };//enum class LogLevel
         
         bool InitLogger(const OSString &app_name);
         
@@ -56,14 +56,14 @@ namespace hgl
             Log(ll,str+U8_TEXT(">>LogFrom(\"")+UTF8String((u8char *)filename)+U8_TEXT("\", ")+UTF8String::valueOf(line)+U8_TEXT(" line,func:\"")+UTF8String((u8char *)funcname)+U8_TEXT("\")"));
         }
 
-        #define LOG_INFO(str)       {Log(llLog,     str);}
-        #define LOG_HINT(str)       {Log(llHint,    str);}
-        #define LOG_PROBLEM(str)    {Log(llProblem, str);}
-        #define LOG_ERROR(str)      {Log(llError,   str);}
+        #define LOG_INFO(str)       {Log(LogLevel::Log,     str);}
+        #define LOG_HINT(str)       {Log(LogLevel::Hint,    str);}
+        #define LOG_PROBLEM(str)    {Log(LogLevel::Problem, str);}
+        #define LOG_ERROR(str)      {Log(LogLevel::Error,   str);}
 
-        #define RETURN_FALSE        {DebugLog(llLog,OS_TEXT("return(false)"),                                   __FILE__,__LINE__,__HGL_FUNC__);return(false);}
-        #define RETURN_ERROR(v)     {DebugLog(llLog,OS_TEXT("return error(")+OSString::valueOf(v)+OS_TEXT(")"), __FILE__,__LINE__,__HGL_FUNC__);return(v);}
-        #define RETURN_ERROR_NULL   {DebugLog(llLog,OS_TEXT("return error(nullptr)"),                           __FILE__,__LINE__,__HGL_FUNC__);return(nullptr);}
+        #define RETURN_FALSE        {DebugLog(LogLevel::Log,OS_TEXT("return(false)"),                                   __FILE__,__LINE__,__HGL_FUNC__);return(false);}
+        #define RETURN_ERROR(v)     {DebugLog(LogLevel::Log,OS_TEXT("return error(")+OSString::valueOf(v)+OS_TEXT(")"), __FILE__,__LINE__,__HGL_FUNC__);return(v);}
+        #define RETURN_ERROR_NULL   {DebugLog(LogLevel::Log,OS_TEXT("return error(nullptr)"),                           __FILE__,__LINE__,__HGL_FUNC__);return(nullptr);}
 
         #define RETURN_BOOL(proc)   {if(proc)return(true);RETURN_FALSE}
 
diff --git a/src/Log/LogFile.cpp b/src/Log/LogFile.cpp
index 8240027..7a60aeb 100644
--- a/src/Log/LogFile.cpp
+++ b/src/Log/LogFile.cpp
@@ -101,7 +101,7 @@ namespace hgl
 
         Logger *CreateLoggerFile(const OSString &pc,LogLevel ll)
         {
-            if(ll<llError)
+            if(ll<LogLevel::Error)
                 return(nullptr);
 
             LogFile *lf=new LogFile(ll);
diff --git a/src/Log/Loginfo.cpp b/src/Log/Loginfo.cpp
index 979944f..155b3c6 100644
--- a/src/Log/Loginfo.cpp
+++ b/src/Log/Loginfo.cpp
@@ -73,7 +73,7 @@ namespace hgl
                                 OS_TEXT("Current program: ") + cur_program.c_str() + OS_TEXT("\n")+
                                 OS_TEXT("Current path: ") + cur_path.c_str() + OS_TEXT("\n");
 
-            WriteLog(llLog,str.c_str(),str.Length());
+            WriteLog(LogLevel::Log,str.c_str(),str.Length());
 
             return(true);
         }
@@ -207,8 +207,8 @@ namespace hgl
          */
         bool InitLogger(const OSString &app_name)
         {
-            AddLogger(CreateLoggerConsole(llLog));
-            AddLogger(CreateLoggerFile(app_name,llLog));
+            AddLogger(CreateLoggerConsole(LogLevel::Log));
+            AddLogger(CreateLoggerFile(app_name,LogLevel::Log));
 
             return InitLog();
         }